Method of performing buffer status reporting and communication device thereof

摘要

A method of performing buffer status reporting for a mobile device capable of UL MIMO and/or capable of receiving and transmitting on a plurality of component carriers in a wireless communication system is disclosed. The method comprises generating at least a MAC subheader, generating at least two MAC control elements for jointly indicating buffer status of at least a logical channel group in the mobile device, and generating a MAC PDU including the at least a MAC subheader and the at least two MAC control elements for the buffer status reporting.

主权项

1. A method of performing buffer status reporting for a mobile device capable of uplink multiple-input multiple-output (MIMO) and/or capable of receiving and transmitting on a plurality of component carriers in a wireless communication system, the method comprising:
generating at least a medium access control (MAC) subheader; generating at least two MAC control elements for jointly indicating buffer status of at least a logical channel group in the mobile device; and generating a MAC protocol data unit (PDU) including the at least a MAC subheader and the at least two MAC control elements for the buffer status reporting; wherein one of the at least two MAC control elements is in a short format for which buffer status of one logical channel group is reported, or in a long format for which buffer status of all logical channel groups are reported; wherein the at least a MAC subheader and/or one of the at least two MAC control elements includes information of at least one of a logical channel identity for indicating the format of one of the at least two MAC control elements, a logical channel group identity for indicating the buffer status of which logical channel group is reported, a buffer size table indication associated to a buffer size table used in the buffer status report, a component carrier configuration for adding/removing, or activating/deactivating a component carrier of the plurality of component carriers, a number of the at least two MAC control elements for the buffer status reporting, and a length of one of the at least two MAC control elements.